Sdmmc Ac Electrical Characteristics - Samsung S5PC110 Manual

S5PC110_UM

1.13 SDMMC AC ELECTRICAL CHARACTERISTICS

Table 1-15 High Speed SDMMC Interface Transmit/Receive Timing Constants
(VDDINT = 1.1V ± 5%, TA = -25 to 85°C, VDDmmc = 3.3V ± 5%, 2.5V ± 5%, 1.8V ± 5%)
Parameter
SD Command output Delay time
SD Command input Setup time
SD Command input Hold time
SD Data output Delay time
SD Data input Setup time
SD Data input Hold time
NOTE: (1), (2): This values are visible of the Rx Feedback Clock selections are enabled. If the Rx Feedback Clock selection
disabled, setup time increases to 14ns (this setting should be used in low speed mode).
Figure 1-14 High Speed SDMMC Interface Timing
Symbol Minimum
t
1.0
SDCD
t (1)
4.0
SDCS
t
-
SDCH
t 1.0
SDDD
t (2)
4.0
SDDS
t
-
SDDH
1 ELECTRICAL DATA
Typical Maximum
- 14.0
- -
- 0.1
- 14.0
- -
- 0.1
Unit
ns
ns
ns
ns
ns
ns
1-26